diff --git a/SuperTiled2Unity/Packages/com.seanba.super-tiled2unity/Editor/Importers/TilesetAtlasImporter.cs b/SuperTiled2Unity/Packages/com.seanba.super-tiled2unity/Editor/Importers/TilesetAtlasImporter.cs
index 0e97c35..007a90a 100644
--- a/SuperTiled2Unity/Packages/com.seanba.super-tiled2unity/Editor/Importers/TilesetAtlasImporter.cs
+++ b/SuperTiled2Unity/Packages/com.seanba.super-tiled2unity/Editor/Importers/TilesetAtlasImporter.cs
@@ -19,7 +19,11 @@ public class TilesetAtlasImporter : ScriptedImporter
         [MenuItem("Assets/Create/Super Tiled2Unity/Tileset Atlas")]
         private static void CreateMaterialFile()
         {
+#if UNITY_6000_0_OR_NEWER
+            ProjectWindowUtil.CreateAssetWithTextContent("TTileAtlas_new.st2u_atlas", "# Uses Super Tiled2Unity scripted importer for placing tileset sprites in a sprite atlas");
+#else
             ProjectWindowUtil.CreateAssetWithContent("TTileAtlas_new.st2u_atlas", "# Uses Super Tiled2Unity scripted importer for placing tileset sprites in a sprite atlas");
+#endif
         }
 
         // Unity Sprite Atlas programming is tricky because of V1 and V2 and the feeling that neither is well supported by Unity APIs